If you want to develop plugins for NewPoints just check the development.html document and take a look at newpoints_hello.php to understand how to develop plugins. (it's really easy if you know how to create MyBB plugins).

Change Log
1.9.9

Fixed major bug in the newpoints_addpoints function which would cause malfunction if it was executed more than once per page.

1.9.8

Plugins can now use the hook newpoints_xmlhttp.

Forum Rules did not affect quick reply posting.

Donation number_format warning on some PHP installations.

Fixed 'newpoints_statistics' template problem.

1.9.7

Fixed a high risk vulnerability (SQL injection).

Fixed a bug in the newpoints_addpoints function which wouldn't add/remove points from a user if points had been added/removed in the same page already.

1.9.6

Settings are now re-cached when installing/uninstalling/activating/deactivating NewPoints plugins.

Group rules now affected points per visit and points for referral.

1.9.5

Fixes minor bugs.

Fixed an SQL error which appeared on the ACP.

Settings are cached which reduces one query per page.

Forum Rules and Group Rules are cached resulting in a performance increase.